Whilst I don't usually recommend the Daily Mail have a look at the following articler;
Then read the following comment:
It is well known in the Health & Safety industry and the HSE that the recommended techniques are 'open to question' and do not actually work in reducing the risk of back injury. With the current HSE recommended techniques as the centre of training courses workers don't change their habits sufficiently for them to make a difference as it becomes obvious that they are not possible in so many tasks.
We provide this training and use the HSE Techniques as a starting point. In reality the only way to genuinely reduce the risk is for each individual to be trained in Manual Handling Risk Assessment so that they can make informed choices rather than being taught by rote a set of techniques that are impossible to apply in far to many cases.
As for suggesting that we all try to stop Manual Handling, the reality is that many of these tasks have to happen and a lot more practical advice, financial support and encouragement should be forthcoming from governmental agencies.